The production of ethanol has increased in United States and Brazil in recent years, because of incentives to reduce gas consumption. In Brazil, there is a big program to use ethanol both as a single fuel or an additive to gas. In US, the incentive is to use ethanol combined to gas in proportion...

Using quarterly data of 58 countries, this paper provides empirical evidence that mobile phone diffusion from 2007 to 2009 is positively influenced by international network effects. Direct and indirect network effects are a result of the international standadization of telecommunication...

Starting from the literature on decision processes in public choices, aim of the paper is to suggest an integrated methodology to get a choice as much as possible shared and participated joining two different approaches. On one hand there is the "classic" or top-down approach based on...

Periurban agricultural territories have had to confront many pressures over the last 70 years, ranging from land development pressures emanating from nearby large cities and metropolis to technological change, to the draw of the urban labour market on farmers' families, to the consequences of...